The effects of different boundary conditions on the composite laminate containing embedded and through-the-width delamination under bending load are investigated analytically based on a developed Layerwise Higher Order Shear Deformation Theory (LHSDT) and the results are compared with the three-dimensional Finite Element Method (FEM). Contact energy has been calculated. The results demonstrate the ability of the presented method of predicting the displacement fields of a composite laminate containing delamination and obtaining stress-strain curves in bending condition. Moreover, strain energy release rate can be achieved using the obtained displacements to evaluate the initiation of delamination propagation around the boundaries of the considered delaminated region. Furthermore, the failure of the laminate will be predicted using conventional theories such as Tsai-Wu.

基于发展的层状高阶剪切变形理论（LHSDT），分析研究了不同边界条件对复合材料层合板在弯曲载荷作用下的嵌入和贯穿宽度分层的影响，并将结果与​​三维有限元进行了比较。方法（FEM）。已计算出接触能。结果证明了所提出的方法能够预测包含分层的复合层合板的位移场并获得弯曲条件下的应力-应变曲线。此外，可以使用获得的位移评估在考虑的分层区域边界附近的分层传播的开始，来实现应变能释放速率。此外，